Aconventional activated-sludge secondary processes treats 29,000 m/day of wastewater with an influent bod, of 170 mg/l. the total volume of the aeration basins is 8480 m3 and the mlss concentration is 2700 mg/l. calculate the: a) aeration period in hours b) bod loadings in kg/day c) volumetric bod loading in g/m3-day d) f/m ratio in grams of bod,/day/g of mlss

Is it safe to take 450mg of diphenhydramine hydrochloride?

Which statement describes covalent bases

A2-kg bowling ball is 1 meter off the ground on a post when it falls. just before it reaches the ground,its traveling 4.4 m/s. assuming that there is no air resistant, which statement is true a. the initial potential energy is less then the final kinetic energy b. the mechanical energy is not conserved c. the mechanical energy is conserved d. the initial potential energy is greater than the final kinetic energy